cucumber: don't fail on flaky tests, fail-fast

.github/workflows/ci.yml

@@ -12,7 +12,6 @@ jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
-      fail-fast: false
       matrix:
         ruby:
           - 2.6

lib/tasks/cucumber.rake

@@ -20,7 +20,7 @@ begin
       t.binary = vendored_cucumber_bin # If nil, the gem's binary is used.
       t.fork = true # You may get faster startup if you set this to false
       t.profile = 'default'
-      t.cucumber_opts = %w[--retry 3]
+      t.cucumber_opts = %w[--retry 3 --no-strict-flaky --fail-fast]
     end
 
     Cucumber::Rake::Task.new({:wip => 'db:test:prepare'}, 'Run features that are being worked on') do |t|